The efficiency of diesel engine is _.
Correct answer: C. 35% to 40%
- A. 10% to 20%
- B. 20% to 35%
- C. 35% to 40%
- D. 40% to 50%
Explanation
The efficiency of a diesel engine can vary depending on various factors such as the design of the engine, operating conditions, and maintenance. However, modern diesel engines typically have an efficiency of around 30-40%, which is higher than gasoline engines. The other options have different and incorrect values.
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About Energy Losses and Efficiency
Efficiency compares useful output energy or power with the total input, usually expressed as a percentage. The topic covers energy losses through friction, heating, resistance and sound, along with power ratings and Sankey diagrams. Efficiency is not the same as conservation of energy, because lost energy is transferred rather than destroyed.
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